中国岩溶2017，Vol.36Issue(5)：721-726,6.DOI:10.11932/karst2017y46
两种常用染色剂管道及淤泥条件下示踪及对比 ——以丁旗地下河连通试验为例
Comparative tracing of two common dyes in conduits with silt: A case study of the Dingqi underground river
摘要
Abstract
The study area is located in the upstream Dabang river,a branch of the Beipanjiang river in Dingqi town,Zhenning county,Guizhou Province.The strata of this place comprise lower Triassic limestone,dolo-mite and landform,with landforms of dissolution hills and valleys.It hosts underground rivers A19,A30 and A10,with silt deposits and buried depths less than 30 m.This study focused on the comparison of tracer experiments for two materials of Uranine and Rhodamine B,and discussion on the rationality of the recovery rates by the two methods.The results show that,(1 )The recovery rate of Uranine is 53.91%,which is higher than Rhodamine B of 40.72%;(2)Uranine's recovery intensity for maximum concentration is 2.95 times than that of Rhodamine B;(3)It is relatively easy to notice some complete wave crests in the attenua-tion section of the Rhodamine B concentration curve.It is concluded that,(1)in the underground rivers with silt deposition,Uranine and Rhodamine B have higher adsorption rates,and there may be some problems in the tracer test technology with higher recovery rates;(2)For the analysis of conduit structure or hydrogeo-logical conditions,Uranine is superior to Rhodamine B;(3)The accuracy of recovery rates depends on fluo-rimeter calibration,flow monitoring,and closely related to environmental factors,such as water-turbidity and sediments.关键词
岩溶地下河/示踪/染色示踪剂对比/回收率Key words
karst underground river/tracing/comparison of dyeing tracer/recovery rate分类
天文与地球科学引用本文复制引用
易连兴,赵良杰,卢海平,王喆..两种常用染色剂管道及淤泥条件下示踪及对比 ——以丁旗地下河连通试验为例[J].中国岩溶,2017,36(5):721-726,6.基金项目
中国地质调查局地质调查项目"贵州打邦河流域1:5万水文地质环境地质调查"(DD20160300-02) （DD20160300-02）
